Axis2的具体使用

 

为了搞个Web Services,让我真是煞费苦心.还好最后用到了axis,在axis上发布Web Services是一件很轻松的事情.甚至不做配置的情况下都可以采用即时发布.就象JSP的发布安装axis需要Servlet容器,我用的是Tomcat-5.0.28,下载Tomcat和axis我就不说了,下载后将axis解压后,将axis文件夹考到Tomcat的webapps下.设置环境变量是非常重要的,设置环境变量:AXISCLASSPATH为:%AXIS_LIB%axis.jar;%AXIS_LIB%commons-discovery-0.2.jar;%AXIS_LIB%commons-logging-1.0.4.jar;%AXIS_LIB%jaxrpc.jar;%AXIS_LIB%saaj.jar;%AXIS_LIB%log4j-1.2.8.jar;%AXIS_LIB%wsdl4j-1.5.1.jar;%AXIS_LIB%xml-apis.jar;%AXIS_LIB%xercesImpl.jar设置AXIS_LIB为随便一个文件夹,将上面的一堆jar包搞进去.再将activation.jar, mail.jar,  wsdl4j-1.5.1.jar搞到 %CATALINA_HOME%commonlib下.若启动Tomcat后在浏览器输入:http://localhost:8080/axis/happyaxis.jsp,若Needed Components都加载了就说明正常启动了axis.axis支持两种发布方式:(先启动Tomcat)1.即时发布:直接使用java语言编辑.jws文件,将它放到axis目录下.实例:用文本编辑器编写HelloWorld.jws public class HelloWorld{ public String helloWorld(){  System.out.println("Hello World!");  return "Hello World!"; }}拷贝到axis下,在浏览器中输入:http://localhost:8080/axis/HelloWorld.jws?wsdl,若显示出相应的描述,说明发布成功,一般不会失败的,除非axis本身有问题.2.定制发布:将编译完的.class文件放到axisWEB-INF,要包含包的文件夹.然后编写.wsdd文件,用org.apache.axis.client.AdminClient来发布实例:编写并编译文件Capacity.java.package samples.capacity;public class Capacity{ public double convertGallon2Litre(double gallon,String user){  if("Andy".equals(user))   return gallon * 4.546;  else   return 0.0d; }}将Capacity.class文件拷贝到axisWEB-INFclasses下(带着文件夹拷),编写deploy.wsdd文件<deployment xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java"> <service name="Capacity" provider="java:RPC">  <parameter name="className" value="samples.capacity.Capacity"/>  <parameter name="allowedMethods" value="*"/> </service></deployment>拷到Capacity.class所在的目录,在控制台切换到该目录执行:java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClient deploy.wsdd显示如下信息说明发布完毕:Processing file deploy.wsdd<Admin>Doneprocessing</Admin>在浏览器输入http://localhost:8080/axis/services/Capacity?wsdl,若显示描述,则说明发布成功.(好象要等一段时间才)调用Web Services:编写AXISTest.java文件:package axisexercise;import org.apache.axis.client.Call;import org.apache.axis.client.Service;import org.apache.axis.encoding.XMLType;import javax.xml.rpc.ParameterMode;public class AXISTest{ public static void main(String[] args) throws Exception{  Service service = new Service();  Call call = ( Call ) service.createCall();  //////////访问即时发布的Distance服务  //设置访问点  call.setTargetEndpointAddress("http://localhost:8080/axis/Distance.jws");  //设置操作名  call.setOperationName("convertMile2Kilometre");  //设置入口参数  call.addParameter("op1",XMLType.XSD_DOUBLE,ParameterMode.IN);  call.setReturnType( XMLType.XSD_DOUBLE );  Double d1 = new Double( 190 );    //调用服务  System.out.println(d1 + " 英里相当于 " + call.invoke(new Object[] {d1}) + " 公里！");  //////////访问定制发布的Capacity服务  call = ( Call ) service.createCall();  //设置访问点  call.setTargetEndpointAddress("http://localhost:8080/axis/services/Capacity");  //设置操作名  call.setOperationName("convertGallon2Litre");  //设置入口参数  call.addParameter("op1",XMLType.XSD_DOUBLE,ParameterMode.IN);  call.addParameter("op2",XMLType.XSD_STRING,ParameterMode.IN);  call.setReturnType( XMLType.XSD_DOUBLE );  d1 = new Double( 10.00 );  String str1 = "ss";  //调用服务  System.out.println(d1 + " 加仑相当于 " + call.invoke( new Object[] {d1,str1} ) + " 升！"); }}编译:javac -classpath .;%AXISCLASSPATH% AXISTest.java执行:java -classpath .;%CATALINA_HOME%commonlibwsdl4j-1.5.1.jar;%AXISCLASSPATH% axisexercise.AXISTest显示如下结果:log4j:WARN No appenders could be found for logger (org.apache.axis.i18n.ProjectResourceBundle).log4j:WARN Please initialize the log4j system properly.190.0 英里相当于 305.71 公里！10.0 加仑相当于 0.0 升！若将AXISTest.java中的str1改为Andy,则接过就是45.46升